All men (all anthropos) are necessarily classified as either Jewish or Gentile (non-Jewish). What the passage doesn't say is that God desires only the salvation of some men out of each class.
Some have suggested that God desires all to be saved as part of His revealed will but only permits some to be saved as part of His secret will. Others have suggested that God desires all to be saved, but “all” should be limited to classes of people. I personally find neither explanation to be all that convincing.
Some say that if God wills for all to be saved, but lots of people reject salvation, God is being limited and thwarted by humans.
But this silly idea is debunked by many verses where God pleads with Israel to return to Him.
Matthew 23:37
O Jerusalem, Jerusalem, thou that killest the prophets and stonest them that are sent unto thee, how often would I have gathered thy children together, even as a hen gathereth her chickens under her wings, and ye would not!
I Timothy 2:4
Who will have all men to be saved, and to come unto the knowledge of the truth.
2 Peter 3:9
The Lord is not slack concerning His promise, as some men count slackness, but is longsuffering toward us, not willing that any should perish, but that all should come to repentance.